Combined window frame and concrete form



July 7, 1959 H. H. GOLDBERG COMBINED WINDOW FRAME AND CONDRETE FORNIFiled March 28, 1956 IN VEN TOR.

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United States Patent() COMBINED WINDOW FRAME AND CONCRETE FORM Harry H.Goldberg, Denver, Colo.

lApplication March 28, 1956, Serial No. 574,461

4 Claims. (Cl. 72-98) This invention relates to metal window frames; andmore particularly, to a combination window frame and concrete form.

A common problem faced by building contractors is that of forming windowopenings in concrete Walls and the like. There are, at present, twowidely used methods of forming window openings in concrete structures.The rst of these, which is perhaps the most common, entails the use ofwooden window opening forms attached between the spaced walls of theconcrete wall forms. After the concrete has set, these Wooden forms areremoved and cannot be reused. The principal disadvantage of this type offorming is the cost of the wooden forming material, the time required toinstall and remove the forms,'and the fact that the forms are notre-usable.

The second widely used forming method employs reusable metal forms.These forms are, however, quite expensive and are generally rented orleased by the contractor. The forms are made in two parts, one of whichprovides the inside of the window opening and the other the outside whenbolted together. The principal disadvantage of this type of window formis the fact that after each use the forms must be removed from thewindow opening, cleaned and oiled before they can be used again.Although the metal forms are reusable, the aforementioned operationsrequire considerable time and labor and, therefore-their use adds to theoverallbuilding costs.

Also, a concrete wall has -a tendency to create pockets landconcentrations of aggregate underneath the sill of the Window form duetothe difficulty in working the concrete into this position. Theconventional window frame is designed with head, sill and jambmemberspwhose Y 4ingvthe window opening are left exposed and present anlrunsightly and unlin'ished appearance;

It is, therefore, the principal object of the present invention toprovide a combined window frame and concrete form which remainspermanently in place after the concrete wall is poured, thus eliminatingthe necessity for dismantling the forms, cleaning them and thereafterinstalling the conventional window and frames.

A second object of the invention is to provide a window construction inwhich the frame members are of suliicient depth to lap the foundationand provide a iinished appearance which covers any imperfections in theconcrete surrounding the window opening.

Another object of the invention is to provide a combined window frameand concrete form which effects a considerable reduction in time andlabor required for installation.

Additional objects of the invention are to provide a combined windowframe and concrete form which is simple, relatively inexpensive,decorative in appearance, and ideally suited for use in forming a windowopening in any type of preformed concrete wall or foundation.

Other objects will be in part apparent and in part pointed outspecifically hereinafter in connection With the ICS description of thedrawing which follows, and in which:

Figure 1 is an elevation of a combined basement window frame andconcrete form embodying the present invention showing the outside facethereof;

Figure 2 is a vertical section takenalong line 2-2 of Figure 1; and

Figure 3 is a horizontal section, a portion of which has been brokenaway to conserve space.

Referring now to the drawing, reference numeral 10 indicates thecombined window frame and concrete form of the present invention whichwill be seen to comprise a head 12, a sill 14 and jambs 16 and 18. Ingeneral cross section each of the frame members 12, 14, 16 and 18 of thewindow frame are channel-shaped having a web 20 and integral flanges 22and 24 extending longitudnally along the outside and inside edgesthereof. Flange 22 is on the inside of the window frame 4and flange 24is on the outside. The tianges lie parallel to one another in spacedrelation and extend in the same direction from the web.

ln the particular construction shown, the specific cross sections of thehead 12 and jamb members 16 and 18 are identical; whereas, the crosssection of the sill 14 is slightly modified and corresponding partsthereof will be identified by adding the letter a to the numericaldesignators.

. 22 -and 24 lie in position to lap the outside face 28 and inside face30 of the concrete wall and hide any imperfections therein adjacent thewindow opening. The frame also performs the combined function o-f aconcrete form for the Window opening When positioned as shown in Figure2 between the outside and inside Walls 32 and 34, respectively, of thewooden foundation form.

Outside flanges 24 and 24a are provided with a plurality of spacedopenings 36 to receive nails 38 by means of which the Window frame 10 isattached to the outside Wall of the foundation form which isrcustomarilyerected first. After the window frame is in place, as shown Vin Figure2, the inside Wallvof the foundation form 32 vis erected and held inplace against inside flanges 22 and 22a thereof -by conventional formties 40 and 2 x 4s. 3,2.

- The concrete is then poured into the form and allowed to set;whereupon, the foundation forms are removed and the projecting ends ofthe form ties and nails-38 clipped.

.In this manner the windowframe becomes permanently anchored in theconcrete wall andprovides a finished frame or surround for the windowsash 44 and screen 46. Following removal of the foundation forms, alintel (not shown) is added along the top of the foundation and windowframe to support the building wall indicated by dottted lines in Figure2. Although the screen 46 and window 44 have been shown in place inFigure 2 for purposes of illustration, they generally will not be fixedin place inside the frame or glazed until after the forms have beenremoved.

Referring now in particular to Figures l and 3, it will be seen that thehead, sill and jambs of the window frame of the present invention areformed to receive the conventional window sash and screen. In theparticular form shown, the head and jamb members have identical crosssections which include an integral rib 48 forming an abutment againstwhich sash 44 rests in closed position and frame 50 of the screen abuts.The head and jambs are also shown provided with a step 52 integrallyformed in the web in spaced parallel relation to the integral n'b 48 toprovide a second abutting surface for window sash 44. The particularwindow sash illustrated is formed from T-iron which provides twosurfaces by which the sash may be sealed against the frame. Of course,in

those conventional constructions in which the window sash is formed `ofangle iron rather than T-iron, step SZ may be eliminated. y

Web 20a of the sill 14 is formed to provide a first step 54 positionedalong the inside of the window sash 44 and a second step 56 in spacedparallel relation thereto lying along the inside of the screen frame5ft. The web 20a preferably slopes downwardly from step 54 to integralflange 24a in order that water may drain therefrom.

The screen is held in place by conventional fasteners 58, shown mostclearly in Figure 3. Window sash 44 is preferably removably attachedwithin the window frame for swinging movement about an axis lying alongits lower edge in the conventional manner and is retained in place by astrut or the like 6) indicated by the dotted lines in Figure 2. Thewindow sash is provided with a conventional latch 62 which cooperateswith catch 64 canried'by the head to hold the window in closed position.

Although the present invention has been described in connection with aspecific basement window assembly of the type formed in a foundation, itwill be apparent to one skilled in the art that the combined windowframe and concrete form of the present invention is equally adaptable touse in any preformed concrete wall for forming window openings andproviding a window frame therein.

Having thus described the many useful and novel features of the combinedwindow frame and concrete form of the present invention it will be seenthat the many useful objects for which it was designed have beenachieved; and, therefore, I claim:

1. In `a combined window frame and concrete form rfor making a windowopening in a concrete wall or the like, an elongated head member and anelongated spaced substantially parallel sill member, said head memberand said sill member having the end portions thereof connected to oneanother by substantially parallel spanning elongated jamb members, eachof said members having a substantially channel-shaped cross sectionformed by a web portion and outwardly extending spaced substantiallyparallel inner flanges and outer support flanges depending therefrom,said support flanges, being provided with apertures adapted to receivefasteners for attaching said frame to a concrete wall form, the flangesof each of said members cooperating to provide a planar face at both theoutside and inside of the frame adapted to fit flush against the opposedpanels of a concrete wall form when placed therebetween, each of the webportions of said head member and said jamb members having alongitudinally extending step defining a first substantially planarsurface facing toward the inner flanges thereof for engaging one surfaceof a window sash, the

web portion of said sill member having a longitudinally extending stepdefining a second substantially planar surface facing toward the outerflange thereof, said last mentioned surface being disposed in a planeclosely spaced to the plane in which said aforementioned surfaces aredisposed for engaging the opposite surface of the window sash, each ofsaid jamb members and said head member having a longitudinal rib formedin the web thereof in spaced parallel relation to the steps thereof inposition to provide a third planar surface facing toward the innerflanges thereof serving as an abutment and seal for three edges of thewindow sash on the inside thereof and providing a fourth planar surfacefacing toward the outer flanges thereof serving as an abutment and sealfor three edges of a screen on the outside thereof.

2. A device as dened in claim 1 wherein said sill member has a secondstep formed therein and defining a fifth planar surface which lies inthe same plane as said fourth planar surface for providing an abutmentand seal for the fourth edge of the screen.

3. A device as defined in claim 2 wherein the web of the sill defines afirst sloping surface between the steps thereof and a second slopingsurface 4between the second step and the outer flange thereof, each ofsaid sloping surfaces sloping downwardly toward the outer flange.

4. A method of forming a window opening in a concrete wall whichcomprises erecting an outside wall of a foundation form, rigidlysecuring a combined window frame and concrete form only to the outsidewall with an outer support flange of the combined form flush with theadjacent surface of the outside wall by driving fasteners throughopenings provided in the outer support flange of the combined form andinto the outside wall, erecting an inside wall of the foundation form inspaced relationship to said outside wall and with an inner supportflange of the combined form flush with the adjacent surface of theinside wall, `and casting concrete in situ between said inside andoutside walls and in surrounding lrelationship to the combined form,then removing the foundation form from the hardened concrete wall andremoving the projecting ends of the fastener.

References Cited in the le of this patent UNITED STATES PATENTS1,640,595 Buss Aug. 30, 1927 2,307,678 Hayes Jan. 5, 1943 2,652,907Miller Sept. 22, 1952 2,787,820 Shields et al. Apr. 9, 1957 FOREIGNPATENTS 511,780 Belgium June 14, 1952

